November weather forecast
Grigel, French Guiana

The last month of the autumn, November, is another hot month in Grigel, French Guiana, with temperature in the range of an average low of 21°C (69.8°F) and an average high of 34°C (93.2°F).

Temperature

The shift into November reveals an average high-temperature of a still tropical 34°C (93.2°F), closely mirroring October's climate. November presents a sharp fall from Grigel's daytime highs to an average low-temperature of 21°C (69.8°F).

Heat index

For November, the heat index is computed to be a burning hot 49°C (120.2°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Grigel, the average relative humidity in November is 75%.

Rainfall

In Grigel, in November, during 15.1 rainfall days, 43mm (1.69") of precipitation is typically accumulated. In Grigel, during the entire year, the rain falls for 265.5 days and collects up to 1078mm (42.44") of precipitation.

Daylight

In Grigel, the average length of the day in November is 11h and 58min.
On the first day of November, sunrise is at 06:18 and sunset at 18:18. On the last day of the month, sunrise is at 06:25 and sunset at 18:21 -03.

Sunshine

In November, the average sunshine is 8.2h.

UV index

August through November, with an average maximum UV index of 7, are months with the highest UV index in Grigel. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 7 in November suggests the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.